<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>after</title>
    <style>
        .clearfix:after{
            content:"";
            display: block;
            clear:both;
        }
        .item{
            float: left;
        }
    </style>
</head>
<body>
<div class="clearfix">
    <div class="item">刘朝朋</div>
    <div class="item">朱振凯</div>
</div>
</body>
</html>